Impact tools
United States Patent 3088440

Inventors:
Wilmer, Richard K.
Publication Date:
05/07/1963
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Assignee:
INGERSOLL RAND CO
Primary Class:
91/5
Other Classes:
173/15, 227/130, 124/75, 91/446, 124/61, 173/31, 124/65, 173/121, 173/2, 92/130R, 173/169
International Classes:
A22B3/02; B25C1/04; A22B3/00
US Patent References:
2960067Single stroke air hammer
2979725Fastener driving apparatus
Foreign References:
GB191302195A