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  • FIG. 33 is a side cross sectional view showing elements of a simplified Cassegrain wide angle reflector similar to that of the applicant's U.S. design patent D312,263, also showing improvements such as reduced obscuration from the lower end of the axial strut 33 v, superior aperture adjustment means, and periscopic optics 33 a, 33 f to cover the front and rear conical zones excluded by the primary
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