Membership
Tour
Register
Log in
Martin Hamacher
Follow
Person
Waltrop, DE
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Textile winding machine having an operator accommodating package re...
Patent number
5,170,955
Issue date
Dec 15, 1992
W. Schlafhorst AG & Co.
Hans Grecksch
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Electrical device for use in an explosive environment
Patent number
4,698,456
Issue date
Oct 6, 1987
Martin Hamacher
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Illuminating device for underground mining
Patent number
4,430,693
Issue date
Feb 7, 1984
Martin Hamacher
E21 - EARTH DRILLING MINING
Information
Patent Grant
Mine lamp
Patent number
4,423,474
Issue date
Dec 27, 1983
Martin Hamacher
F21 - LIGHTING
Information
Patent Grant
Shockproof fluorescent light fixture
Patent number
4,312,028
Issue date
Jan 19, 1982
Martin Hamacher
F21 - LIGHTING
Information
Patent Grant
Lamp for use in subterranean applications
Patent number
4,186,432
Issue date
Jan 29, 1980
Martin Hamacher
F21 - LIGHTING