The Hour Glass

The Hour Glass is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Contact Lens Prescriptions Filled
• Optical Goods
• Opticians

North American Industry Classification System (NAICS) Categories:

• Optical Goods Stores
• Offices Of Optometrists > Vision Correction Centers > Contact Lens Prescriptions Filled
• Offices Of All Other Miscellaneous Health Practitioners > Opticians

Standard Industry Classification (SIC) Categories:

• Optical Goods Stores
• Offices And Clinics Of Optometrists > Offices & Clinics Of Optometrists, Nec > Optometrists Contact Lens
• Offices And Clinics Of Health Practitioners, Nec > Opticians