Tools and hardware – Other tools and implements – With relative movement of parts while performing function
Patent
1986-02-04
1988-06-07
Burke, Wallace R.
Tools and hardware
Other tools and implements
With relative movement of parts while performing function
Patent
active
D02960729
REFERENCES:
patent: D243652 (1977-03-01), Zurwelle et al.
patent: D279957 (1985-08-01), Akazawa et al.
patent: D289004 (1987-03-01), Somers
Popular Mechanics, Nov. 1979, p. 34 Skil's "Boar Gun", advertisement.
Black & Decker Industrial/Construction Division catalogue 1982, p. 15 "Professional Cordless Hammer Drill".
Burke Wallace R.
Matsushita Electric & Works Ltd.
Vinson Brian N.
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