Keyword: psychotechnics

Psychotechnik

psychotechnics

psychotechnics is used as descriptor

 
Identifier Title Date Level of description Other information
GFA 16/47639 Two-band tester for psycho-technical office 1947 Item: 1 photo digitized | prolonged period of protection
GFA 16/47640 Quality control by sense of proportion for psycho-technical office 1947 Item: 1 photo digitized | prolonged period of protection
GFA 16/47641 Quality control by sense of proportion for psycho-technical office 1947 Item: 1 photo digitized | prolonged period of protection
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