Tools and hardware – Other tools and implements – With relative movement of parts while performing function
Patent
1995-07-10
1997-09-23
Bullock, B. J.
Tools and hardware
Other tools and implements
With relative movement of parts while performing function
D8 70, 0801
Patent
active
D03839605
REFERENCES:
patent: D255642 (1980-07-01), Erpenbeck et al.
patent: D288167 (1987-02-01), Urspruch
patent: 3798765 (1974-03-01), Mattsson
patent: 4628779 (1986-12-01), Louis
patent: 4739682 (1988-04-01), Birkenstrand
patent: 4825543 (1989-05-01), Thalmann et al.
patent: 4845850 (1989-07-01), Rothenberger
Portable bit sharpener #23929, Leichtung Work Shops Catalog, Summer 1991, p. 12.
Astle Henry
Sandford William E.
Bullock B. J.
Spear Robert M.
Tri Tool Inc.
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