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Authority search results
Authorized headings		Type of heading	Records
Topical Term: Astronomical instruments used for/see from: Astronomy Instruments Instruments, Astronomical see also: Optical instruments (Broader heading) Physical instruments (Broader heading) Scientific apparatus and instruments (Broader heading) Space optics (Broader heading)	Details	Topical Term	2 records
Topical Term: Astronomical instruments Congresses	Details	Topical Term	0 records