Precision hole grinder
United States Patent 2608807
US Patent References:
/1219827.html
- - 1219827

/1304278.html
- - 1304278

Cylinder-grinding machine
- - 1441242

Mixing machine
- - 1781321

Grinding mechanism
- - 1839253


Inventors:
Arne, Nilsen
Karl, Rohrer
Publication Date:
09/02/1952
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Assignee:
ONSRUD MACHINE WORKS INC
Primary Class:
451/440
Other Classes:
451/211, 415/229, 384/544, 415/202
International Classes:
B24B41/00
US Patent References:
1981269Valve seat grinder
2388955Variable-speed power transmission
2458765Planetary grinding machine
Foreign References:
DE315955C
FR857704A
SE104096A
GB604919A