Title:
Keying means for draft controls
United States Patent 3327945
US Patent References:
/0183315.html
- - 0183315
/0521959.html
- - 0521959
/1004004.html
- - 1004004
/1051461.html
- - 1051461
/1217805.html
- - 1217805
/0183315.html
- - 0183315
/0521959.html
- - 0521959
/1004004.html
- - 1004004
/1051461.html
- - 1051461
/1217805.html
- - 1217805
Inventors:
Pfister, Leo F.
Publication Date:
06/27/1967
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Export Citation:
Assignee:
CONCO ENGINEERING WORKS INC
Primary Class:
Other Classes:
126/285R, 110/147, 285/420, 110/163, 126/307R, 285/424, 285/417
International Classes:
F23L11/02; F23L11/00
US Patent References: