Title: Mower blades

Abstract: This invention relates to mower blades made of metal with an inner layer of extremely hard material and so devised that attrition in use serves to maintain a sharp cutting edge.

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Inventors: Gunther, Roland Eric (New Berlin, NY, US)

Application Number: 444786
Filing Date: 1974-02-22
Publication_date: 1976-08-24
Assignee:
Primary Class(es): 56/295 30/350
Other Classes:
US Patent Ref:

222711	Dec, 1879	Lane	30/350.
230948	Aug, 1880	Lane	30/350.
1414997	May, 1922	Zinn	30/350.
3302377	Feb, 1967	Ely	56/295.
3313633	Apr, 1967	Longo	29/191.
3340049	Sep, 1967	Quaas et al.	29/191.
3342626	Sep, 1967	Batchelor	29/191.
3360848	Jan, 1968	Saia	228/107.
3369354	Feb, 1968	Freedlander et al.	56/295.
3428442	Feb, 1969	Yurasko	29/191.

Other Refs: 93,093

Oct, 1938	SW

Primary Examiner: Mancene, Louis G.
Assistant Examiner: Hamilton, James D.
Attorney: