Machines not elsewhere specified – Engine – Element or attachment
Design Patent
2011-08-30
2011-08-30
Lichtenstein, Lisa (Department: 2917)
Machines not elsewhere specified
Engine
Element or attachment
Design Patent
active
D0644249
CLAIM:
The ornamental design for a mechanical coupler, as shown and described.
REFERENCES:
patent: 2677916 (1954-05-01), Hannapel
patent: 5406418 (1995-04-01), Deary
patent: 6904835 (2005-06-01), Dugan et al.
patent: D599823 (2009-09-01), Tapper
Buchanan Metal Forming, Inc.
Lichtenstein Lisa
Warner & Norcross & Judd LLP
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