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* [[Media:GR 1604-B Impedance Comparison Bridge 790-B 1956.pdf|General Radio 1604-B Impedance Comparison Bridge 790-B 1956]] | * [[Media:GR 1604-B Impedance Comparison Bridge 790-B 1956.pdf|General Radio 1604-B Impedance Comparison Bridge 790-B 1956]] | ||
{{Catalog History}} | |||
* [[Media:GRwiki Catalog N OCR 1954.pdf|N (1954)]], p.93 | |||
* [[Media:GRwiki Catalog O OCR 1956.pdf|O (1956)]], p.31 | |||
}} | }} | ||
The '''General Radio 1604-B Comparison Bridge''' was introduced in 1954 Catalog N and remained available through Catalog O 1956. | The '''General Radio 1604-B Comparison Bridge''' was introduced in 1954 Catalog N and remained available through Catalog O 1956. |
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