Patterson Companies (Nasdaq: PDCO) today announced that it will hold its conference call to review operating results for the second quarter of fiscal 2013 on Tuesday, November 20 at 10:00 AM Eastern. The Patterson earnings release will be issued before the market opens that day. Investors can access a live webcast of the conference call by visiting the investor relations section of the Patterson Companies website, www.PattersonCompanies.com. The webcast will be archived on Patterson’s website. Following the conference call, a replay will be available for one month. Interested persons may dial 303-590-3030 and provide the Conference ID, 4574654, when prompted. About Patterson Companies, Inc.Patterson Companies, Inc. is a value-added distributor serving the dental, companion-pet veterinarian and rehabilitation supply markets. Dental MarketAs Patterson’s largest business, Patterson Dental provides a virtually complete range of consumable dental products, equipment and software, turnkey digital solutions and value-added services to dentists and dental laboratories throughout North America. Veterinary MarketWebster Veterinary is a leading distributor of consumable veterinary supplies, equipment and software, diagnostic products, vaccines and pharmaceuticals to companion-pet veterinary clinics. Rehabilitation MarketPatterson Medical is the world’s leading distributor of rehabilitation supplies and non-wheelchair assistive patient products to the physical and occupational therapy markets. The unit’s global customer base includes hospitals, long-term care facilities, clinics and dealers.