Smoking pipe
United States Patent 3170468
US Patent References:
/0682470.html
- - 0682470

/1189690.html
- - 1189690

Smoking pipe
- - 1893137

Sanitary smoking stem for pipes
- - 1956404

Stem
- - 2159698


Inventors:
Smith, Robert L.
Publication Date:
02/23/1965
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Assignee:
FILTO PIPES INC
Primary Class:
131/213
Other Classes:
131/212.200, 131/194, 131/225
International Classes:
A24F1/00
US Patent References:
2230872Smoking pipe
2529278Combined tobacco-smoking pipe and pyrophoric lighter
2654370Smoking pipe
2753873Tobacco pipe
2965106Pipestem couplers
3106922Tobacco pipes
Foreign References:
GB255213A