Gasoline driven hammer - Patent 2574103

Gasoline driven hammer

United States Patent 2574103

US Patent References:
/0865889.html
- - 0865889

/1223407.html
- - 1223407

Internal combustion hammer
- - 1813513

Inventors:

Hefner, John P.

Publication Date:

11/06/1951

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Assignee:

Hefner, John P.

Primary Class:

123/46SC

Other Classes:

123/71R, 60/626, 173/59, 173/170, 92/85A, 60/712, 123/66, 92/85R

International Classes:

B25D9/10; B25D9/00