KERN, Microscope, models:

OBE 101	User Instructions
OBE 111	User Instructions
OBL 145	User Instructions
OBN 141	User Instructions
OCO-2	Operating Manual
ODC-87	User Instructions
ODC-89 Series	User Instructions
OLM 171	User Instructions
OPTICS OKO 178	Operating Instructions Manual
OSE 410	User Instructions
OSF 522	User Instructions
OSF-4	User Instructions
OZC 583	User Instructions
OZG 497	User Instructions
OZL 441	User Instructions
OZL-45	User Instructions
OZL-45R	User Instructions
OZO 551	User Instructions