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Patent number:
Patent Date:
US Patent: 1,871,856
Trenching machine
Patentee:
Jason H. MacDonald (
exact
or
similar
names) - Milwaukee, WI
USPTO Classifications:
180/53.1
,
37/361
Tool Categories:
Assignees:
C. H. & E. Mfg. Co.
- Milwaukee, WI
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Feb. 14, 1930
Granted:
Aug. 16, 1932
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for C. H. & E. Mfg. Co.
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