Membership
Tour
Register
Log in
using timber- setting machines
Follow
Industry
CPC
E21D11/03
This industry / category may be too specific. Please go to a parent level for more data
Parent Industries
E
FIXED CONSTRUCTIONS
E21
Mining
E21D
SHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS
E21D11/00
Lining tunnels, galleries or other underground cavities
Current Industry
E21D11/03
using timber- setting machines
Industries
Overview
Organizations
People
Information
Impact
Please log in for detailed analytics
Patents Grants
last 30 patents
Information
Patent Grant
3712071
Patent number
3,712,071
Issue date
Jan 23, 1973
E21 - EARTH DRILLING MINING
Information
Patent Grant
3204933
Patent number
3,204,933
Issue date
Sep 7, 1965
E21 - EARTH DRILLING MINING
Information
Patent Grant
2917282
Patent number
2,917,282
Issue date
Dec 15, 1959
E21 - EARTH DRILLING MINING
Information
Patent Grant
2784941
Patent number
2,784,941
Issue date
Mar 12, 1957
E21 - EARTH DRILLING MINING
Information
Patent Grant
2772871
Patent number
2,772,871
Issue date
Dec 4, 1956
E21 - EARTH DRILLING MINING
Information
Patent Grant
2738081
Patent number
2,738,081
Issue date
Mar 13, 1956
E21 - EARTH DRILLING MINING
Information
Patent Grant
2727639
Patent number
2,727,639
Issue date
Dec 20, 1955
E21 - EARTH DRILLING MINING
Information
Patent Grant
2700483
Patent number
2,700,483
Issue date
Jan 25, 1955
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
2694460
Patent number
2,694,460
Issue date
Nov 16, 1954
E21 - EARTH DRILLING MINING
Information
Patent Grant
2689662
Patent number
2,689,662
Issue date
Sep 21, 1954
E21 - EARTH DRILLING MINING
Information
Patent Grant
2683475
Patent number
2,683,475
Issue date
Jul 13, 1954
B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information
Patent Grant
2672997
Patent number
2,672,997
Issue date
Mar 23, 1954
E21 - EARTH DRILLING MINING
Information
Patent Grant
2667903
Patent number
2,667,903
Issue date
Feb 2, 1954
B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information
Patent Grant
2656057
Patent number
2,656,057
Issue date
Oct 20, 1953
E21 - EARTH DRILLING MINING
Information
Patent Grant
2649979
Patent number
2,649,979
Issue date
Aug 25, 1953
E21 - EARTH DRILLING MINING
Information
Patent Grant
2648444
Patent number
2,648,444
Issue date
Aug 11, 1953
E21 - EARTH DRILLING MINING
Information
Patent Grant
2603373
Patent number
2,603,373
Issue date
Jul 15, 1952
E21 - EARTH DRILLING MINING
Information
Patent Grant
2597086
Patent number
2,597,086
Issue date
May 20, 1952
E21 - EARTH DRILLING MINING
Information
Patent Grant
2591475
Patent number
2,591,475
Issue date
Apr 1, 1952
E21 - EARTH DRILLING MINING
Information
Patent Grant
2574857
Patent number
2,574,857
Issue date
Nov 13, 1951
E21 - EARTH DRILLING MINING
Information
Patent Grant
2570383
Patent number
2,570,383
Issue date
Oct 9, 1951
E21 - EARTH DRILLING MINING
Information
Patent Grant
2459505
Patent number
2,459,505
Issue date
Jan 18, 1949
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
2456878
Patent number
2,456,878
Issue date
Dec 21, 1948
E21 - EARTH DRILLING MINING
Information
Patent Grant
2408387
Patent number
2,408,387
Issue date
Oct 1, 1946
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
1886620
Patent number
1,886,620
Issue date
Nov 8, 1932
E21 - EARTH DRILLING MINING
Information
Patent Grant
1755738
Patent number
1,755,738
Issue date
Apr 22, 1930
E21 - EARTH DRILLING MINING
Information
Patent Grant
1708761
Patent number
1,708,761
Issue date
Apr 9, 1929
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents