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US Patent: 4,325,163
Portable blower-vacuum unit
Patentees:
Douglas A. Milliken - Thousand Oaks, CA
George M. Zink - Simi Valley, CA
Charles A. Mattson - Woodland Hills, CA

USPTO Classifications:
15/330, 15/337, 15/339, 15/405, 241/169.1, 241/56, 415/121.2, D23/383

Tool Categories:
industrial machines : blowers

Assignees:
Allegretti & Co. - Chatsworth, CA

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Apr. 07, 1980
Granted: Apr. 20, 1982

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for Paramount Division of Allegretti & Co.

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