TREA

Door knockers

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Industry

  • CPC
  • Y10S116/12
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Parent Industries

YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS Y10USPC classification Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS Y10S116/00Signals and indicators

Current Industry

Y10S116/12Door knockers
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    2767424
    • Patent number 2,767,424
    • Issue date Oct 23, 1956
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Grant

    2747538
    • Patent number 2,747,538
    • Issue date May 29, 1956
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    2715243
    • Patent number 2,715,243
    • Issue date Aug 16, 1955
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    2523158
    • Patent number 2,523,158
    • Issue date Sep 19, 1950
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    962332
    • Patent number 962,332
    • Issue date Jun 21, 1910
    • G01 - MEASURING TESTING
  • Information Patent Grant

    602573
    • Patent number 602,573
    • Issue date Apr 19, 1898
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    124368
    • Patent number 124,368
    • Issue date Mar 5, 1872
    • A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
  • Information Patent Grant

    103446
    • Patent number 103,446
    • Issue date May 24, 1870
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...