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Delavan's mechanical sewer ferret
Description of device built by M. Clapper for locating sewer laterals.
Delavan's mechanical sewer ferret
Description of device built by M. Clapper for locating sewer laterals.
Delavan's mechanical sewer ferret
Am City
American City ; 60
1945
Article (Journal)
English
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Mechanical sewer cleaners simplify sewer maintenance
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